Acer Aspire 7520 EVERYTHING IS HUGE

yes if it is empty,you can change it with new one,but you must set everything in BIOS again,to work corectly as it was working earlier

http://www.intellcity.ru/content-2/service-manual-notebook-Acer/service-manual-Acer-Aspire-7520-7220-Series.pdf here is your service guide to that particular model hope it help Rate me if ive helped Kronoguy

Acer Aspire 7520 heeft een SATA-harddisk, kan Windows XP niet installeren. Lees deze
http://news.softpedia.com/news/Install-Windows-XP-On-SATA-Without-a-Floppy-F6-47807.shtml

HI there will you please follow the steps.

1. After press power button for turn on press F8 key.
2. You will find few option there. Just select these mention option " Last know good Configuration ...." use by your up/down arrow on your keyboard.
3. Press enter there.
4. your will see the system asking you for which OS you want to use. If you have only one OS then just press ENTER there or select the OS and Enter.

If no luck after that all then you have to format your OS & installed it again.

Have you checked the cooling fans for CPU for
Cleanleness and or running?

maybe u can enter bios system first by press F10/DEL/F12,,,try reconfigure booting 1st place with ur internal CD/DVD Rom...and then save setting and restart your Laptop

Go to www.acer.com, select your region, and you can download drivers and software for your computer or componets. I hope this helps, Good luck. If you have any questions please recontact me by clicking on my username.

I would check the power supply. Remove it and try it in another PC if possible.

clean the board by crc or c40... or you can use coller fan external to avoid to much heating

right click on the display and go to properties.
there is a link about dpi. change it to normal size.